Solar Impulse 2. It was the plane that did a round-world trip using only the sun as fuel. Utilizing 17,000 solar panels and four lithium-ion batteries, the plane crossed some of the world's largest oceans and visited some of the world's most recognizable landmarks. One of the electrical engineers on the ground crew - responsible for catching the landing plane and the housing of the plane in a mobile hanger - joins us on Quintessential Engineering to talk about being part of one of the most significant projects of engineering and aviation history. We talk to Forbes 30 Under 30 inductee, Paige Kassalen.